Q.1:
A man can row at 5 km/hr in still water, if the river is running at 1 km/hr it takes him 75 minutes to row to a place and back. How far is the place?
A.
2.5km
B.3km
C.
4 km
D.
5 km
Q.2:
In a river, a man takes 3 hours in rowing 3 km upstream or 15 km downstream. What is the speed of the current?n
A.2km/hr
B.
4km/hr
C.
6km/hr
D.
9km/hr
Q.3:
A boat running upstream takes 8 hours 48 min to cover a certain distance while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and the speed of water current respectively?
A.
2 : 1
B.
3 : 1
C.8 : 3
D.
Cannot be determined
Q.4:
A boat goes 6 km in an hour in still water. It takes thrice as much time in covering the same distance against the current. Speed of the current is_______?
A.
2 km/hr
B.
3km/hr
C.4km/hr
D.
5 km/hr
Q.5:
A man can row three-quarters of a kilometer against the stream in 11 minutes and return in 7 minutes. The speed of the man in still water is________?
A.
2km/hr
B.
3km/hr
C.
4 km/hr
D.5 km/hr
Q.6:
A man can row 7 kms on hour in still water and he finds that it takes hi twice as long to row down the river. The rate of stream is
A.
2.4km/hr
B.2.5 km/hr
C.
3.4km/hr
D.
3.5km/hr
Q.7:
A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will he take to go 5km in stationery water?
A.
40 Minutes
B.
1 Hour
C.1 hr 15 Min
D.
1 Hr 30 Min
Q.8:
A boat takes half time in moving a certain distance downstream than upstream. What is the ratio between the rate in still water and rate of current?
A.
1 : 2
B.3 : 1
C.
2 : 1
D.
1 : 3
Q.9:
The speed of a boat in still water is 2km/hr. If its speed upstream be 1km/hr then speed of the stream is________?r
A.
1.5km/hr
B.
3km/hr
C.1km/hr
D.
none
Q.10:
A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9km/hr and the speed of the current is 3km/hr, the distance A and B is:_______?